The Smiths were also invited.

　　 The English like to be with their family at Christmas.

　　 The Chinese are kind and friendly.

　　 當(dāng)上述形容詞轉(zhuǎn)化為名詞，作某種語(yǔ)言解時(shí)，謂語(yǔ)動(dòng)詞用單數(shù)，如：

　　 French is spoken in many countries.

　　 A chemical works has been built here.

　　 There are two iron and steel works in our province.

　　 There is / are no means of learning what is happening.

　　 Is /Are there any other means of getting there?

　　 Every possible means has been tried since then.

　　 All possible means have been tried since then.

　　 No news is good news.

　　 Physics studies heat, light, sound, etc.

　　 Mathematics was the only course he failed in.

　　 Politics is now taught in all schools.

　　 注①：如果指某人在該學(xué)科方面的實(shí)用能力或?qū)W習(xí)成績(jī)時(shí)，謂語(yǔ)動(dòng)詞單復(fù)均可，如：

　　 His mathematics is / are rather weak.

　　 I think your physics is / are better than mine.

　　 My politics are / is not so good.

　　 注②：politics如果作“政治策略/觀點(diǎn)/事務(wù)”解時(shí)，謂語(yǔ)動(dòng)詞應(yīng)當(dāng)用復(fù)數(shù)形式，如：

　　 What are your politics?

　　 All work and no play makes Jack a dull boy.

　　 Early to bed and early to rise makes a man healthy, wealthy and wise.

　　 I, who am old, have never seen such a thing.

　　 Those who agree with him raise their hands.

　　 He lives in the house which is near our school.

　　 It is I who am knocking at the door.

　　 但是在“one of + 復(fù)數(shù)名詞+定語(yǔ)從句”結(jié)構(gòu)中，定語(yǔ)從句中謂語(yǔ)動(dòng)詞的單復(fù)數(shù)形式有下列三種情況：

　　 ① 根據(jù)先行詞為復(fù)數(shù)名詞而定，采取復(fù)數(shù)形式，如：

　　 Tom is one of the boys who are on time.

　　 His brother is one of the students who are ready to help others.

　　 ②　當(dāng)one之前有the only (或the) 等限定詞和修飾語(yǔ)時(shí)，定語(yǔ)從句應(yīng)根據(jù)one而定，采取單數(shù)形式，如：

　　 She is the only one of the girls who comes from the countryside.

　　 She is the only one of the singers who was invited to give us a talk last year.

　　 ③　在非正式文體中，“one of +復(fù)數(shù)名詞 ”之后的定語(yǔ)從句中的謂語(yǔ)動(dòng)詞也可用單數(shù)形式，如：

　　 Mr White is one of those people who believes in ancient maths.

　　 Which is your room? Which are your rooms?

　　 What we need is more money. What we need are bicycles.

　　 What he said is true / is difficult to believe.

　　 What he gave me are only two pens.

　　 What he left me are but a few old books.

　　 The best is yet to come.

　　 The good is not always beautiful.

　　 The wounded was a good friend of his.

　　 The rich are against the new law.

　　 The blind are taught in special schools.

　　 The sick have been cured and the lost have been found.

　　 New York Times is a well-known newspaper / has a wide circulation / is published daily.

　　 His “Selected Poems” was published in 1965.

　　 When was the United Nations founded / established?